Women's Nike Free TR 6 Training Shoe - DYNAMIC FIT WITH A FLEXIBLE FOUNDATION. Breathable mesh and dynamic Flywire cables make Women's Nike Free TR 6 Training Shoe the perfect workout companion. Its tri-star outsole pattern adjusts to your every step, delivering both stability and flexibility. Lightweight mesh upper for stability and breathability. Flywire cables provide a locked-down fit. Tri-star outsole pattern allows natural range of motion. Molded foam wraps the ankle to secure the fit. Rubber pods enhance durability in high-wear areas.